A method for analyzing intracellular components characterized by involving the following steps; and kits containing (a) an extractant, (b) a branched dextrin or its derivative, and (c) a reagent for analyzing intracellular components: (1) the step of adding the extractant to a sample containing cells to thereby extract intracellular components; (2) the step of adding the branched dextrin or its derivative to the sample containing the extractant; and (3) the step of analyzing the thus extracted intracellular components. The use of the branched dextrin or its derivative makes it possible to prevent the extractant from inhibiting the analysis steps.
